agentmods.dev

SessionStart

A startup and resume hook configuration for a coding-agent session. A hook is an automatic action that runs when a specified event occurs.

In plain words
What is it for?
Use it to run shell checks and silently load recent notes when a session starts or resumes.
Why use it?
It restores recent project context by checking for a configured vault and reading a hot-notes file when one exists.

Hook

1 3mo ago A scan tokens not measured original MIT
View the source file eliransu/digital-brain
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add hooks/eliransu/digital-brain/session-start
Clone the repo
git clone --depth 1 https://github.com/eliransu/digital-brain
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

SessionStart scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

hooks/hooks.json · 17 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "startup|resume",
      "hooks": [
        {
          "type": "command",
          "command": "[ -f wiki/hot.md ] && cat wiki/hot.md || true"
        },
        {
          "type": "prompt",
          "prompt": "If a vault is configured for this session (check CLAUDE.md for VAULT_PATH or a wiki/ folder in the current directory), silently read wiki/hot.md to restore recent context. If wiki/hot.md does not exist, do nothing. This is a non-vault session. Do not announce this. Do not report what you read. Just have the context available."
        }
      ]
    }
  ]
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 17 lines scan A f37583186a8e

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository eliransu/digital-brain (1 stars, last pushed 3mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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Related

Other hooks, from other repositories

PreToolUse

Runs before the agent uses a tool for Write, Edit and MultiEdit tool calls, executing pre-write.sh. From anh-chu/llm-wiki-pm.

anh-chu/llm-wiki-pm · not measured

PreToolUse

Runs before the agent uses a tool for Write, Edit, MultiEdit and NotebookEdit tool calls, executing kb_guard.py via python3. From yasik/kmd.

yasik/kmd · not measured

Stop

Runs when the agent finishes a response, executing route.sh. From ahmedtawfeeq1/loredex.

ahmedtawfeeq1/loredex · not measured

SessionStart

Runs when a session starts on startup, clear and compact, running an inline shell check. From frankchu91/mindbase-llm-wiki.

frankchu91/mindbase-llm-wiki · not measured

PostToolUse

Runs after a tool call finishes for Bash, Edit and Write tool calls, executing agents.ts (2 commands). From FASTPROD/ContextEngine.

FASTPROD/ContextEngine · not measured

SessionEnd

Runs when a session ends, executing session-stop.sh. From anh-chu/llm-wiki-pm.

anh-chu/llm-wiki-pm · not measured